1/2-20UNF Keyless Drill Chuck, 2-13 mm Self-Tightening Multi-Drill Chuck

SPECIFICATION --- Wide range of collet sizes from 2 to 13 mm/0.04 to 0.51 inch, suitable for many types of drills. Diameter: 43 mm; Length: 71 mm; Connection size: 1/2-20UNF;

STRONG CLAMPING FORCE --- The unique design can easily convert the torque exerted by the handle into a greater clamping force and hold the drill firmly and securely, making it difficult to loosen.

EXCELLENT PERFORMANCE The keyless, self-tightening design is more ergonomic. Through heat treatment, the product exhibits good toughness and superior structural strength.

EASY TO USE Durable and long-lasting, suitable for extended use. Easy to install and remove, more convenient and economical. Features a good metal structure and a pleasant coated surface.